Ting-Hui Wu1, Lukas Jyuhn-Hsiarn Lee2, Chang-Tsu Yuan3, Tom Wei-Wu Chen4, James Chih-Hsin Yang5. 1. Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan. 2. National Institute of Environmental Health Sciences, National Health Research Institutes, Zhunan, Miaoli, Taiwan; Department of Environmental and Occupational Medicine, National Taiwan University Hospital, Taipei, Taiwan; Institute of Occupational Medicine and Industrial Hygiene, College of Public Health, National Taiwan University, Taipei, Taiwan. 3. Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan. 4. Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan; National Taiwan University Cancer Center, Taipei, Taiwan; Graduate Institute of Oncology, National Taiwan University College of Medicine, Taipei, Taiwan. Electronic address: tomwchen@ntuh.gov.tw. 5. Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan; National Taiwan University Cancer Center, Taipei, Taiwan; Graduate Institute of Oncology, National Taiwan University College of Medicine, Taipei, Taiwan.
Abstract
BACKGROUND/ PURPOSE: There are scarce reports on the prognostic factors and treatment outcomes of patients with malignant pleural mesothelioma (MPM) in Asia. This study aimed to address these matters in a real-world setting. METHODS: Medical records of patients with histologically proven MPM diagnosed between 1977 and 2016 at the National Taiwan University Hospital were reviewed. Variables including age, gender, performance status, asbestos exposure, smoking history, histology subtype, staging, and treatment received were recorded. All patients were followed until death or March 1st, 2017. Survival and prognostic factors were analyzed by the Kaplan-Meir method and the Cox proportional hazard model. RESULTS: A total of 93 patients was identified, including 65 men and 28 women. An increasing trend of MPM cases diagnosed was observed in the past 40 years. Stage I/II disease (HR 0.24, 95% CI 0.13-0.46) and epithelioid histology (HR 0.42, 95% CI 0.23-0.75) were associated with favorable prognosis, whereas age ≥70 years (HR 2.66, 95% CI 1.36-5.22) and ECOG ≥2 (HR 5.03, 95% CI 2.69-9.4) were poor prognostic factors. After adjustment for prognostic factors, surgery in stage I-III MPM (HR 0.36, 95% CI 0.15-0.83) and systemic therapy in stage III/IV disease (HR 0.42, 95% CI 0.19-0.94) conferred a survival benefit. CONCLUSION: This is one of the largest case series of MPM reported in Asia outside of Japan. Prognostic factors in the study population included age, performance status, stage, and histology subtype. Surgery in potentially resectable disease and systemic therapy in advanced MPM confer a survival benefit in Asian patients.
BACKGROUND/ PURPOSE: There are scarce reports on the prognostic factors and treatment outcomes of patients with malignant pleural mesothelioma (MPM) in Asia. This study aimed to address these matters in a real-world setting. METHODS: Medical records of patients with histologically proven MPM diagnosed between 1977 and 2016 at the National Taiwan University Hospital were reviewed. Variables including age, gender, performance status, asbestos exposure, smoking history, histology subtype, staging, and treatment received were recorded. All patients were followed until death or March 1st, 2017. Survival and prognostic factors were analyzed by the Kaplan-Meir method and the Cox proportional hazard model. RESULTS: A total of 93 patients was identified, including 65 men and 28 women. An increasing trend of MPM cases diagnosed was observed in the past 40 years. Stage I/II disease (HR 0.24, 95% CI 0.13-0.46) and epithelioid histology (HR 0.42, 95% CI 0.23-0.75) were associated with favorable prognosis, whereas age ≥70 years (HR 2.66, 95% CI 1.36-5.22) and ECOG ≥2 (HR 5.03, 95% CI 2.69-9.4) were poor prognostic factors. After adjustment for prognostic factors, surgery in stage I-III MPM (HR 0.36, 95% CI 0.15-0.83) and systemic therapy in stage III/IV disease (HR 0.42, 95% CI 0.19-0.94) conferred a survival benefit. CONCLUSION: This is one of the largest case series of MPM reported in Asia outside of Japan. Prognostic factors in the study population included age, performance status, stage, and histology subtype. Surgery in potentially resectable disease and systemic therapy in advanced MPM confer a survival benefit in Asian patients.